| Citation | León, T.M., 2001 A new species of Ammothea (Pycnogonida) and other pycnogonids from Livingston Island and surrounding waters (South Shetland Islands, Antarctica). Antarc. Sci. 13 (2):144-149. |
| Ref. | 1669 León, T.M., 2001 |
| Page | |
| Named Used as Valid | Heteronymphon exiguum |
| Locality | |
| Distribution | South Shetland. |